A city cited not long ago as the nation’s most sprawling is now firmly on a path to become substantially greener. In particular, two weeks ago I described the Nashville region’s impressive commitment to reform its transportation investments to support increased transit access, walkable neighborhoods, and a strengthened sense of place. And there’s more. Writing on his blog Old Urbanist , Charlie Gardner describes recent improvements to the Music City’s downtown zoning: “In addition to its plans for the region, Nashville has revamped its zoning code, adopting in 2010 what is in substance, if not in name, a form-based code for its downtown. The changes are some of the most promising I've seen in any code revision for a major American city , including the repeal of most of use-based zoning limitations and the elimination of all parking minimums within the downtown area. It's a...